Solution :
Sampling may be defined as the technique of selecting the individual members or the subset of the population to make a statistical inferences and estimates the characteristics of the entire population.
There are several sampling methods. This includes : Systematic sampling, clustered sampling, stratified sampling, quota sampling, judgement sampling, random sampling, convenience sampling and many more.
In the context, the sampling methods for each of the descriptions are :
a). The researcher use computer program to randomly choose a sample of 30 mice of the 1000 mice for using her study
--- Simple Random
b). The researcher chose the 1st 30 mice as she can reach the door to the mouse room
--- Convenience sampling
c). The mice those whose are kept in the cages on 10 various shelves in mouse room. The researcher or the experimenter chose the three mice from each shelve.
---- Stratified sampling
d). Each of the cage have 5 mice and the researcher randomly chooses 6 cages for her study
----- Cluster sampling
e). The researcher generates the list of the identification numbers which has been sorted from the smallest to the largest. The researcher randomly picks 1 mouse form the list and selects every 4 mouse until the researcher has 30 mice.
---- Systematic sampling
Answer:
1/4,0.5, and 3/8 on edg
Step-by-step explanation:
Step-by-step explanation:
let the eqn be y = mx + b.
m = 200/(900 - 700) = 1
sub (700, 0):
0 = 700 + b
b = -700
therefore eqn is y = x - 700
Topic: coordinate geometry
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Answer:
2.8 liters
Step-by-step explanation:
So there are various ways to do this problem, this is just MY preferred way.
Since we are given 1/4th of a total value with 14 liters, we can actually make this 4/4 by multiplying our given value by 4. In this case, 14 liters for 25% becomes 56 liters for 100% antifreeze.
Since we know have a percent of 100%, we can proceed to take 10% increments, all the way up to 30%
10% is 5.6, multiplied by 3 is 16.8
While you might want to put 16.8 instantly, don't forget we are looking for how much is ADDED from 25%, not just how much there is.
In this case, subtract 14 from 16.8 to come out with a grand total of 2.8 liters added.
Answer:
A
Step-by-step explanation:
The best way to do is this by cancellation. Cancel out the answers that are incorrect.
D is incorrect. There are 100 male students and 100 female students. This table shows that there 94 male students and 106 female students.
C and B are both incorrect because they say that there are 42 male students that dislike peas. Really, there are 42 male students that like peas.
This leaves you with letter A. The table matches the data given, so this is the answer.
